Fig. 24: The fixing points of the cabinet
A. The 4 fixing points at the bottom
B. The 2 fixing points at the front bottom
C. The 2 fixing points at the rear top
D. The 2 fixing points in the fixing bracket
4.7 COOLING AND FREE SPACE AROUND THE AC DRIVE
The AC drive produces heat in operation. The fan circulates air and decreases the
temperature of the drive. Make sure that there is sufficiently free space around the drive.
Some free space in front of the drive is also necessary for maintenance. You must also have
80 cm of free space in front of the cabinet to be able to open the cabinet door. When you have
2 or more drives, you can install them side by side.
Make sure that the temperature of the cooling air does not become higher than the
maximum ambient operating temperature or lower than the minimum ambient operating
temperature of the drive.
The air must move freely and efficiently through the cabinet and the drive. There must be a
minimum of 30 cm of space above the cabinet without obstacles that can stop the airflow.
Make sure that the hot air goes out of the cabinet and does not come back into the cabinet.
The power loss of the AC drive can change significantly, when the load, the output frequency
or the switching frequency changes. It is useful to know the power loss, when you plan the
VACON · 44 MOUNTING
4
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
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